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David Stevenson Spain, Jr.

PW Polaris Wireless: 3 patents #1 of 8Top 15%
📍 Portland, OR: #116 of 1,042 inventorsTop 15%
🗺 Oregon: #296 of 2,981 inventorsTop 10%
Overall (2011): #50,738 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8068802 Estimating the location of a wireless terminal based on calibrated signal-strength measurements Tarun Kumar Bhattacharya, Martin Feuerstein 2011-11-29
8068855 Location determination using RF fingerprinting Robert Morris Dressler 2011-11-29
7899467 Estimating the location of a wireless terminal based on the traits of the multipath components of a signal Martin Feuerstein, Scot Douglas Gordon 2011-03-01